Six Half is a manga created by Iketani Rikako and it ran from 2009 to 2015 serialized by Cookie.
Kikukawa Shiori wakes up and finds herself in an unfamiliar hospital. Surrounded by people she cannot recognize. She had a motorcycle accident and is now suffering from amnesia. A Yankee-looking boy that claims to be her boyfriend, a kindhearted older brother and an introverted sister, with all of them being strangers to her.
Now living in a house that she feels lost in, Shiori tries to work things out about her previous self and maybe jog her memories. Though what she overhears from schoolmates makes it appear like she was a terrible person. Concerned about those rumors and her own lack of identity, Shiori goes to work on herself. And maybe find 'herself' again.
Six Half contains the following Tropes
- Alpha Bitch: It's heavily implied that Shiori was one; she wasn't above dismissing her friends or being quite rude to her little sister. The current Shiori is the complete opposite.
- Amnesiac Hero: Shiori, obviously.
- Bathroom Stall of Overheard Insults: Shiori instigates this by hiding in a stall and then calling out her name to get the girls in the bathroom to talk about her. They don't really talk about any proper insults, but do refer to the rumors that Shiori was sleeping around and probably had an STD. And that they heard it from Chika.
- Bitch in Sheep's Clothing: Chika.
- Fashion Model: Shiori auditioned for the Cookie Style magazine prior to her accident, then takes part after the accident to try things out for herself. While she initially fails, she eventually decides to do some hair/make-up product ads. And even gravure shots.
- In-Series Nickname: The Kikukawa siblings call each other A-chan, Maa-chan and Shi-chan. Except for Maho who refuses to call Shiori anything.
- Missing Mom: Mrs Kikukawa left the family years ago. Akio's biological mother died in a car accident when he was 9 years old.
- Not Blood Siblings: As it turns out, Shiori is from her mother's previous marriage and Akio from his father's previous marriage, making them unrelated to each other and Maho their half-sister. Akio also reveals that Shiori knew about this prior to the accident, but the Shiori now doesn't know.
- STD Immunity: Subverted, when a rumor claims that Shiori has one from sleeping around. Shiori gets tested and turns out to be negative.
- Umbrella of Togetherness: Shiori and Kai share one during the rainy season, though he's a little annoyed about it. Mizuki and Akio share a more positive one.